English verb conjugation COULD STAIR-STEP

Regular verb: stair-step - stair-steped - stair-steped

Affirmation

Simple form

I could stair-step
you could stair-step
she could stair-step
we could stair-step
you could stair-step
they could stair-step

V-ing form

I could be stair-steping
you could be stair-steping
she could be stair-steping
we could be stair-steping
you could be stair-steping
they could be stair-steping

Perfect

I could have stair-steped
you could have stair-steped
she could have stair-steped
we could have stair-steped
you could have stair-steped
they could have stair-steped

V-ing perfect

I could have been stair-steping
you could have been stair-steping
she could have been stair-steping
we could have been stair-steping
you could have been stair-steping
they could have been stair-steping

Negation

Simple form

I could not stair-step
you could not stair-step
she could not stair-step
we could not stair-step
you could not stair-step
they could not stair-step

V-ing form

I could not be stair-steping
you could not be stair-steping
she could not be stair-steping
we could not be stair-steping
you could not be stair-steping
they could not be stair-steping

Perfect

I could not have stair-steped
you could not have stair-steped
she could not have stair-steped
we could not have stair-steped
you could not have stair-steped
they could not have stair-steped

V-ing perfect

I could not have been stair-steping
you could not have been stair-steping
she could not have been stair-steping
we could not have been stair-steping
you could not have been stair-steping
they could not have been stair-steping

Interrogative form

Simple form

could I stair-step?
could you stair-step?
could she stair-step?
could we stair-step?
could you stair-step?
could they stair-step?

V-ing form

could I be stair-steping?
could you be stair-steping?
could she be stair-steping?
could we be stair-steping?
could you be stair-steping?
could they be stair-steping?

Perfect

could I have stair-steped?
could you have stair-steped?
could she have stair-steped?
could we have stair-steped?
could you have stair-steped?
could they have stair-steped?

V-ing perfect

could I have been stair-steping?
could you have been stair-steping?
could she have been stair-steping?
could we have been stair-steping?
could you have been stair-steping?
could they have been stair-steping?

Interro-negative form

Simple form

could I not stair-step?
could you not stair-step?
could she not stair-step?
could we not stair-step?
could you not stair-step?
could they not stair-step?

V-ing form

could I not be stair-steping?
could you not be stair-steping?
could she not be stair-steping?
could we not be stair-steping?
could you not be stair-steping?
could they not be stair-steping?

Perfect

could I not have stair-steped?
could you not have stair-steped?
could she not have stair-steped?
could we not have stair-steped?
could you not have stair-steped?
could they not have stair-steped?

V-ing perfect

could I not have been stair-steping?
could you not have been stair-steping?
could she not have been stair-steping?
could we not have been stair-steping?
could you not have been stair-steping?
could they not have been stair-steping?

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